Patents by Inventor Keiji Sekine
Keiji Sekine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10774200Abstract: A transparent ABS resin composition which enables a production of a molded article retaining an excellent mechanical strength without decreasing the transparency and opacity, consisting of: based on a total mass of the transparent ABS resin composition, 70 to 98% by mass of a transparent ABS resin; and 2 to 30% by mass of a glass filler. The glass filler consists of glass components and optionally at least one oxide.Type: GrantFiled: October 30, 2015Date of Patent: September 15, 2020Assignee: Asahi Fiber Glass Co., Ltd.Inventors: Takenori Noguchi, Keiji Sekine
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Publication number: 20200190321Abstract: A polycarbonate-based resin composition including: an aliphatic polycarbonate-based resin (A) containing a specific repeating unit; and a glass filler (B) having specific composition and having a total content of Li2O, Na2O, K2O, and Cs2O of 5 mass % or less, wherein the refractive index of the aliphatic polycarbonate-based resin (A) for light having a wavelength of 589.3 nm is 1.480 or more and 1.520 or less, wherein the refractive index of the glass filler (B) for light having a wavelength of 589.3 nm is 1.485 or more and 1.520 or less, and wherein a difference in refractive index between the aliphatic polycarbonate-based resin (A) and the glass filler (B) is 0.003 or less for light having a wavelength of 486.1 nm, is 0.001 or less for light having a wavelength of 589.3 nm, and is 0.001 or less for light having a wavelength of 656.3 nm.Type: ApplicationFiled: April 23, 2018Publication date: June 18, 2020Applicants: IDEMITSU KOSAN CO., LTD, ASAHI FIBER GLASS CO., LTD.Inventors: Shinobu YAMAO, Minoru YABUKAMI, Keiji SEKINE, Peng ZHAO, Koji HAYATA
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Patent number: 9896569Abstract: Provided are a polycarbonate resin composition containing a polycarbonate resin containing an aliphatic carbonate repeating unit (A) derived from an aliphatic dihydroxy compound and a specific glass filler, and a molded article.Type: GrantFiled: November 5, 2013Date of Patent: February 20, 2018Assignees: IDEMITSU KOSAN CO., LTD., Asahi Fiber Glass CO., LTD.Inventors: Takanori Owada, Keiji Sekine, Takenori Noguchi
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Publication number: 20170335088Abstract: The present invention provides a transparent ABS resin composition which enables a production of a molded article retaining an excellent mechanical strength without decreasing the transparency and opacity, containing: based on a total mass of the transparent ABS resin composition, 70 to 98% by mass of a transparent ABS resin; and 2 to 30% by mass of a glass filler. The glass filler contains, based on a total mass of the glass filler, 55 to 60% by mass of silicon dioxide (SiO2), 10 to 15% by mass of aluminium oxide (Al2O3), 18 to 22% by mass of calcium oxide (CaO), 2 to 8% by mass of boron oxide (B2O3), 0.01 to 1% by mass of magnesium oxide (MgO), and 0.01 to 1% by mass of sodium oxide (Na2O) or potassium oxide (K2O). The mass ratio of calcium oxide to silicon dioxide (CaO/SiO2) in the glass filler is 0.36 to 0.40.Type: ApplicationFiled: October 30, 2015Publication date: November 23, 2017Applicant: Asahi Fiber Glass Co., Ltd.Inventors: Takenori NOGUCHI, Keiji SEKINE
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Publication number: 20150291767Abstract: Provided are a polycarbonate resin composition containing a polycarbonate resin containing an aliphatic carbonate repeating unit (A) derived from an aliphatic dihydroxy compound and a specific glass filler, and a molded article.Type: ApplicationFiled: November 5, 2013Publication date: October 15, 2015Applicants: IDEMITSU KOSAN CO., LTD., ASAHI FIBER GLASS CO., LTD.Inventors: Takanori Owada, Keiji Sekine, Takenori Noguchi
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Patent number: 8841377Abstract: To provide a glass fiber which can improve the refractive index of the glass fiber to the same level as a polycarbonate and maintain the transmittance of a molded product after the fiber is reinforced, and a glass fiber-reinforced polycarbonate resin molded product using the glass fiber. A glass fiber to be used as a glass fiber for reinforcing a polycarbonate resin comprising, as inorganic components in whole glass fiber, from 50 to 60 mass % of SiO2, from 10 to 15 mass % of Al2O3, from 15 to 25 mass % of CaO, from 2 to 10 mass % of TiO2, from 2 to 8 mass % of B2O3, from 0 to 5 mass % of MgO, from 0 to 5 mass % of ZnO, from 0 to 5 mass % of BaO, from 0 to 5 mass % of ZrO2, from 0 to 2 mass % of Li2O, from 0 to 2 mass % of Na2O and from 0 to 2 mass % of K2O, wherein the total content of the above Li2O, Na2O and K2O is from 0 to 2 mass % based on the above whole glass fiber, and the refractive index of the above glass fiber is from 1.580 to 1.590.Type: GrantFiled: May 13, 2005Date of Patent: September 23, 2014Assignee: Asahi Fiber Glass Company, LimitedInventor: Keiji Sekine
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Patent number: 8476353Abstract: Provided are an amorphous polyamide resin composition having high transparency, and is excellent in heat resistance and stiffness, and a molded product thereof. The glass filler contains, expressed in terms of oxides by mass %, 68 to 74% of silicon dioxide (SiO2), 2 to 5% of aluminum oxide (Al2O3), 2 to 5% of boron oxide (B2O3), 2 to 10% of calcium oxide (CaO), 0 to 5% of zinc oxide (ZnO), 0 to 5% of strontium oxide (SrO), 0 to 1% of barium oxide (BaO), 1 to 5% of magnesium oxide (MgO), 0 to 5% of lithium oxide (Li2O), 5 to 12% of sodium oxide (Na2O), and 0 to 10% of potassium oxide (K2O), where a total amount of lithium oxide (Li2O), sodium oxide (Na2O), and potassium oxide (K2O) is 8 to 12%.Type: GrantFiled: September 25, 2008Date of Patent: July 2, 2013Assignee: Asahi Fiber Glass Company, LimitedInventors: Hideyuki Higashiyama, Keiji Sekine
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Patent number: 7700682Abstract: A glass filler for a polycarbonate resin, whereby the refractive index of the glass filler can be improved to the same level as a polycarbonate resin, and the transparency of a molded product after reinforced with such a filler can be maintained without coloration, and a polycarbonate resin composition employing such a filler, are provided.Type: GrantFiled: November 6, 2006Date of Patent: April 20, 2010Assignee: Asahi Fiber Glass Company, LimitedInventor: Keiji Sekine
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Publication number: 20100076155Abstract: Provided are an amorphous polyamide resin composition having high transparency, and is excellent in heat resistance and stiffness, and a molded product thereof. The glass filler contains, expressed in terms of oxides by mass %, 68 to 74% of silicon dioxide (SiO2), to 5% of aluminum oxide (Al2O3), 2 to 5% of boron oxide (B2O3), 2 to 10% of calcium oxide (CaO), 0 to 5% of zinc oxide (ZnO), 0 to 5% of strontium oxide (SrO), 0 to 1% of barium oxide (BaO), 1 to 5% of magnesium oxide (MgO), 0 to 5% of lithium oxide (Li2O), 5 to 12% of sodium oxide (Na2O), and 0 to 10% of potassium oxide (K2O), where a total amount of lithium oxide (Li2O), sodium oxide (Na2O), and potassium oxide (K2O) is 8 to 12%.Type: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Applicant: ASAHI FIBER GLASS COMPANYInventors: Hideyuki Higashiyama, Keiji Sekine
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Publication number: 20090178708Abstract: Provided is a solar cell module that can be reduced in thickness and weight, is applicable to a curve shape, and can be applied to an exterior material of a vehicle. The solar cell module (1) includes a front surface cover member (2) provided on a side into which sunbeam enters, a rear surface cover member (3) provided on a side opposite to the side into which sunbeam enters to face the front surface cover member, and a solar cell (4) provided between the front surface cover member (2) and the rear surface cover member (3). The front surface cover member (2) and the rear surface cover member (3) are each formed of a glass filler-containing thermoplastic resin molded product, and the front surface cover member (2) has a parallel light transmittance of 65% or more and a haze of less than 30%. The glass filler-containing thermoplastic resin molded product has a linear expansion coefficient of preferably 3.0 to 6.0 (×10?5/° C.).Type: ApplicationFiled: September 26, 2008Publication date: July 16, 2009Applicant: ASAHI FIBER GLASS COMPANY, LIMITEDInventors: Hideyuki Higashiyama, Keiji Sekine
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Publication number: 20070179237Abstract: To provide a glass fiber which can improve the refractive index of the glass fiber to the same level as a polycarbonate and maintain the transmittance of a molded product after the fiber is reinforced, and a glass fiber-reinforced polycarbonate resin molded product using the glass fiber. A glass fiber to be used as a glass fiber for reinforcing a polycarbonate resin comprising, as inorganic components in whole glass fiber, from 50 to 60 mass % of SiO2, from 10 to 15 mass % of Al2O3, from 15 to 25 mass % of CaO, from 2 to 10 mass % of TiO2, from 2 to 8 mass % of B2O3, from 0 to 5 mass % of MgO, from 0 to 5 mass % of ZnO, from 0 to 5 mass % of BaO, from 0 to 5 mass % of ZrO2, from 0 to 2 mass % of Li2O, from 0 to 2 mass % of Na2O and from 0 to 2 mass % of K20, wherein the total content of the above Li2O, Na2O and K2O is from 0 to 2 mass % based on the above whole glass fiber, and the refractive index of the above glass fiber is from 1.580 to 1.590.Type: ApplicationFiled: May 13, 2005Publication date: August 2, 2007Applicant: Asahi Fiber Glass Company, LimitedInventor: Keiji Sekine
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Publication number: 20070112123Abstract: A glass filler for a polycarbonate resin, whereby the refractive index of the glass filler can be improved to the same level as a polycarbonate resin, and the transparency of a molded product after reinforced with such a filler can be maintained without coloration, and a polycarbonate resin composition employing such a filler, are provided.Type: ApplicationFiled: November 6, 2006Publication date: May 17, 2007Applicant: Asahi Fiber Glass Company, LimitedInventor: Keiji SEKINE
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Patent number: 4883879Abstract: A cephalosporin compound having the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom, a methoxy group, a substituted or unsubstituted vinyl group, or --CH.sub.2 --A wherein A is a hydrogen atom, an azido group, an acyloxy group, a carbamoyloxy group, a substituted or unsubstituted heterocyclic group (wherein the hetrocyclic ring is a 5- or 6-membered heterocyclic ring having from 1 to 4 oxygen, nitrogen or sulfur atoms), or a substituted or unsubstituted heterocyclic thio group (wherein the heterocyclic ring is a monocyclic or bicyclic heterocyclic ring having from 1 to 5 oxygen, nitrogen or sulfur atoms), or a pharmaceutically acceptable salt thereof.Type: GrantFiled: January 13, 1989Date of Patent: November 28, 1989Assignee: Kaken Pharmaceutical Co., Ltd.Inventors: Yoshiyuki Zama, Nobuo Ishiyama, Tsuneo Saita, Takanobu Naito, Masao Hirose, Masaaki Yokoyama, Taiji Asano, Hisato Senda, Keiji Sekine, Shigeru Sanai
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Patent number: 4882314Abstract: Disclosed is a novel carcinostatic composition comprising 4,6-0-benzylidene-D-glucopyranose as the active ingredient. This active ingredient exerts a very high carcinostatic activity according to a specific carcinostatic mechanism quite different from that of conventional carcinostatic chemotherapeutic agents. The active ingredient is very low in toxicity and is highly stable and water-soluble. This composition is effective against selected malignant conditions which are carcinoma of the colon, cancer of the stomach, cancer of the tongue, peritonitis carcinomatosa, cancer of the liver and malignancies induced by SV.sub.40 virus.Type: GrantFiled: August 4, 1987Date of Patent: November 21, 1989Assignees: Rikagaku Kenkyusho, Mutsuyuki Kochi, Kaken Kagaku Kabushiki KaishaInventors: Setsuo Takeuchi, Mutsuyuki Kochi, Akira Kawarada, Shinichiro Esumi, Kaguya Sasaki, Shozo Kawabata, Tsuneo Saita, Yukio Inoue, Makoto Yamamoto, Keiji Sekine
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Patent number: 4822786Abstract: A cephalosporin compound having the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom, a methoxy group, a substituted or unsubstituted vinyl group, or --CH.sub.2 --A wherein A is a hydrogen atom, an azido group, an acyloxy group, a carbamoyloxy group, a subsituted or unsubstituted heterocyclic group (wherein the hetrocyclic ring is a 5- or 6-membered heterocyclic ring having from 1 to 4 oxygen, nitrogen or sulfur atoms), or a substituted or unsubstituted heterocyclic thio group (wherein the heterocyclic ring is a monocyclic or bicyclic heterocyclic ring having from 1 to 5 oxygen, nitrogen or sulfur atoms), or a pharmaceutically acceptable salt thereof.Type: GrantFiled: June 17, 1987Date of Patent: April 18, 1989Assignee: Kaken Pharmaceutical Co., Ltd.Inventors: Yoshiyuki Zama, Nobuo Ishiyama, Tsuneo Saita, Takanobu Naito, Masao Hirose, Masaaki Yokoyama, Taiji Asano, Hisato Senda, Keiji Sekine, Shigeru Sanai